Commit 7149d6bf authored Sep 02, 2014 by Mark A. Greer Committed by Samuel Ortiz Sep 07, 2014

NFC: trf7970a: trf7970a_init() turns off the RF transmitter



When trf7970a_init() initializes the trf7970a it
implicitly turns off the RF transmitter.  Track
this by clearing the TRF7970A_CHIP_STATUS_RF_ON
bit in the cached trf->chip_status_ctrl.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

parent cfc708db

drivers/nfc/trf7970a.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -826,6 +826,8 @@ static int trf7970a_init(struct trf7970a *trf)

		usleep_range(1000, 2000);

		trf->chip_status_ctrl &= ~TRF7970A_CHIP_STATUS_RF_ON;

		ret = trf7970a_write(trf, TRF7970A_MODULATOR_SYS_CLK_CTRL, 0);
		if (ret)
		goto err_out;

Admin message